A crown is a cover or “cap” your dentist can put over a tooth. The crown restores the tooth to its normal shape, size, and function. A crown can make the tooth stronger or improve the way it looks.
Reasons you may need a crown:
• You have a cavity that is too large for a filling
• You have a tooth that is cracked, worn down, or otherwise weakened
• You have had root canal treatment — the crown will protect the restored tooth
• You want to cover a discolored or badly shaped tooth and improve your smile
Before – Amalgam filling with decay at the edge
After – Filling replaced by a crown
Crowns are made from several types of materials. Metal alloys, ceramics, porcelain, porcelain fused to metal, or composite resin may be used. When a crown is made, the material often is colored to blend in with your natural teeth.
Your dentist wants your crown to look natural and fit comfortably in your mouth. To decide which material to use for your crown, your dentist will consider many factors, such as:
Before crown: Worn filling with decay under filling
Crown is placed over prepared tooth
After crown placement
It usually takes 2 dental visits to complete the treatment. When a crown is placed over a natural tooth, several steps are involved:
Like natural teeth, crowns can break. And, the tooth under the crown can still get cavities. To prevent cavities or damage to your crown: